PS3 Fan Test mode?

[Answered] PS3 Fan Test mode?

Hello to All ! I have searching a lot on the net about the ps3 fan test and i'm really confused about it some people it doesn't damages ps3 it clean the dust out of it by running fan at higher speed and some says it causes overheat to cpu & gpu so the ps3 fan runs at higher speed which shorten ps3 life span. So does this fan test mode damages your ps3? Any help will be greatly appreciated.